Achieving low latency and energy consumption by 5G TDD mode optimization

Eeva  Lähetkangas; Kari Pajukoski; Jaakko Vihriälä; Gilberto Berardinelli; Mads Lauridsen; Esa Tiirola; Preben Mogensen

doi:10.1109/ICCW.2014.6881163

Achieving low latency and energy consumption by 5G TDD mode optimization

Eeva Lähetkangas, Kari Pajukoski, Jaakko Vihriälä, Gilberto Berardinelli, Mads Lauridsen, Esa Tiirola, Preben Mogensen

Department of Electronic Systems

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

62 Citations (Scopus)

Abstract

The target for a new 5G radio access technology is to support multi-Gbps and ms latency connectivity simultaneously at noticeably lower energy consumption and cost compared to the existing 4G technologies, such as LTE-Advanced. Extremely short air interface latency is required to achieve these requirements in a TDD-based local area network. In this paper, we discuss how the required short TDD latency can be achieved and further utilized in 5G physical air interface. First, we investigate the enablers and limits of TDD latency by analyzing the performance of OFDM in different channel environments and discussing on the consequent frame length limits. We then provide a description on how the achieved short TDD latency can further be utilized to enable remarkably low energy consumption. A numerical analysis comparing the battery life time of the suggested 5G TDD air interface and LTE is provided, showing remarkable gains for the 5G air interface concept.

Original language	English
Title of host publication	Communications Workshops (ICC), 2014 IEEE International Conference on
Number of pages	6
Publisher	IEEE Press
Publication date	2014
Pages	1-6
ISBN (Print)	9781479946402
DOIs	https://doi.org/10.1109/ICCW.2014.6881163
Publication status	Published - 2014
Event	2014 IEEE International Conference on Communications - Sydney , Australia Duration: 10 Jun 2014 → 14 Jun 2014 Conference number: 31675

Conference

Conference	2014 IEEE International Conference on Communications
Number	31675
Country/Territory	Australia
City	Sydney
Period	10/06/2014 → 14/06/2014

Series	IEEE International Conference on Communications
ISSN	1938-1883

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title = "Achieving low latency and energy consumption by 5G TDD mode optimization",

abstract = "The target for a new 5G radio access technology is to support multi-Gbps and ms latency connectivity simultaneously at noticeably lower energy consumption and cost compared to the existing 4G technologies, such as LTE-Advanced. Extremely short air interface latency is required to achieve these requirements in a TDD-based local area network. In this paper, we discuss how the required short TDD latency can be achieved and further utilized in 5G physical air interface. First, we investigate the enablers and limits of TDD latency by analyzing the performance of OFDM in different channel environments and discussing on the consequent frame length limits. We then provide a description on how the achieved short TDD latency can further be utilized to enable remarkably low energy consumption. A numerical analysis comparing the battery life time of the suggested 5G TDD air interface and LTE is provided, showing remarkable gains for the 5G air interface concept.",

author = "Eeva L{\"a}hetkangas and Kari Pajukoski and Jaakko Vihri{\"a}l{\"a} and Gilberto Berardinelli and Mads Lauridsen and Esa Tiirola and Preben Mogensen",

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doi = "10.1109/ICCW.2014.6881163",

language = "English",

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series = "IEEE International Conference on Communications",

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booktitle = "Communications Workshops (ICC), 2014 IEEE International Conference on",

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Lähetkangas, E, Pajukoski, K, Vihriälä, J, Berardinelli, G, Lauridsen, M, Tiirola, E & Mogensen, P 2014, Achieving low latency and energy consumption by 5G TDD mode optimization. in Communications Workshops (ICC), 2014 IEEE International Conference on. IEEE Press, IEEE International Conference on Communications, pp. 1-6, 2014 IEEE International Conference on Communications, Sydney , Australia, 10/06/2014. https://doi.org/10.1109/ICCW.2014.6881163

Achieving low latency and energy consumption by 5G TDD mode optimization. / Lähetkangas, Eeva ; Pajukoski, Kari; Vihriälä, Jaakko et al.
Communications Workshops (ICC), 2014 IEEE International Conference on. IEEE Press, 2014. p. 1-6 (IEEE International Conference on Communications).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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AU - Lähetkangas, Eeva

AU - Pajukoski, Kari

AU - Vihriälä, Jaakko

AU - Berardinelli, Gilberto

AU - Lauridsen, Mads

AU - Tiirola, Esa

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AB - The target for a new 5G radio access technology is to support multi-Gbps and ms latency connectivity simultaneously at noticeably lower energy consumption and cost compared to the existing 4G technologies, such as LTE-Advanced. Extremely short air interface latency is required to achieve these requirements in a TDD-based local area network. In this paper, we discuss how the required short TDD latency can be achieved and further utilized in 5G physical air interface. First, we investigate the enablers and limits of TDD latency by analyzing the performance of OFDM in different channel environments and discussing on the consequent frame length limits. We then provide a description on how the achieved short TDD latency can further be utilized to enable remarkably low energy consumption. A numerical analysis comparing the battery life time of the suggested 5G TDD air interface and LTE is provided, showing remarkable gains for the 5G air interface concept.

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M3 - Article in proceeding

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PB - IEEE Press

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Achieving low latency and energy consumption by 5G TDD mode optimization

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